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Light-transforming transparent plastic greenhouse film for cucumber planting, and preparation method thereof

A technology of transparent plastic and shed film, which is applied in the fields of botany equipment and methods, applications, climate change adaptation, etc. It can solve the problems of short service life of film, fast aging of film, and influence of plant growth, etc., so as to prolong service life and improve Utilization rate, the effect of promoting budding and flowering

Inactive Publication Date: 2018-03-23
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, sulfur element exists in most light conversion films, and the aging speed of the films is fast; these films are all made of multilayer composite films with the addition of colored dyes or fluorescent light conversion agents, or in the form of multilayer composite films prepared by different raw materials , to achieve the purpose of adjusting the light transmittance of the film and promote plant growth, but these colored dyes will have a certain impact on plant growth, the utilization rate of sunlight is low, and the service life of the film is short

Method used

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  • Light-transforming transparent plastic greenhouse film for cucumber planting, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The steps of the light-transforming transparent plastic shed film for cucumber planting prepared by the present invention are as follows:

[0029] a. Take the benzoxazole compound, add N-methyl-2-pyrrolidone dihydrogen phosphate and hydrogen peroxide, mix according to the molar ratio of 0.5:3:6, and carry out the oxidative desulfurization reaction at 50°C. The reaction time is 8h, Oxygen-substituted sulfur-free benzoxazole compounds are obtained;

[0030] b. Add 3% rare earth metal ions of the mass of the benzoxazole compound to the oxygen-substituted sulfur-free benzoxazole compound obtained in step a for coordination to prepare a composite light conversion agent; wherein the rare earth metal ion is a rare earth element cerium;

[0031] c. Mix the composite light-changing agent obtained in step b with matrix resin, filler, surfactant, and light stabilizer according to the mass ratio of 5:50:20:2:0.5, put it into a closed plastic kneader, and Plastic scouring at 150°C...

Embodiment 2

[0035] The steps of the light-transforming transparent plastic shed film for cucumber planting prepared by the present invention are as follows:

[0036] a. Take the benzoxazole compound, add N-methyl-2-pyrrolidone dihydrogen phosphate and hydrogen peroxide, mix according to the molar ratio of 5:1.5:4, and carry out the oxidative desulfurization reaction at 60° C., and the reaction time is 5 hours. Oxygen-substituted sulfur-free benzoxazole compounds are obtained;

[0037] b. Add 5% rare earth metal ions of the mass of the benzoxazole compound to the oxygen-substituted sulfur-free benzoxazole compound obtained in step a for coordination to prepare a composite light conversion agent; wherein the rare earth metal ion is a rare earth element barium and strontium;

[0038] c. Mix the composite light-changing agent obtained in step b with matrix resin, filler, surfactant, and light stabilizer according to a mass ratio of 5:60:10:1:3, and put it into a closed plasticizing machine. ...

Embodiment 3

[0042] The steps of the light-transforming transparent plastic shed film for cucumber planting prepared by the present invention are as follows:

[0043] a. Take the benzoxazole compound, add N-methyl-2-pyrrolidone dihydrogen phosphate and hydrogen peroxide, mix according to the molar ratio of 3:5:10, and carry out the oxidative desulfurization reaction at 50°C, the reaction time is 4h, Oxygen-substituted sulfur-free benzoxazole compounds are obtained;

[0044] b. Add 8% rare earth metal ions of the mass of the benzoxazole compound to the oxygen-substituted sulfur-free benzoxazole compound obtained in step a for coordination to prepare a composite light conversion agent; wherein the rare earth metal ion is a rare earth element barium, strontium and cerium;

[0045] c. Mix the composite light-changing agent obtained in step b with matrix resin, filler, surfactant, and light stabilizer according to a mass ratio of 4:70:15:1.5:0.5, and put it into a closed plasticizing machine. ...

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Abstract

The invention relates to a light-transforming transparent plastic greenhouse film for cucumber planting, and a preparation method thereof. The preparation method comprises the following steps: a, taking a benzoxazole compound, adding N-methyl-2-pyrrolidone phosphate dihydrogen phosphate and hydrogen peroxide and performing oxidative desulfurization to obtain oxygen-substituted sulfur-free benzoxazole compound; b, adding rare earth metal ions into the oxygen-substituted sulfur-free benzoxazole compound and performing coordination to prepare a composite light-transforming agent; c, mixing the composite light-transforming agent, matrix resin, filler, a surfactant and a light stabilizer and performing extrusion and blow molding to obtain a transparent greenhouse film; and d, performing coronatreatment and hot-press molding on the transparent greenhouse film to obtain the light-transforming transparent greenhouse film. The light-transforming transparent plastic greenhouse film for cucumberplanting can increase yellow light, red light and orange light, eliminate green light and purple light, promote budding and flowering of the cucumbers, achieve the yield increasing effect, increase the utilization rate of sunlight, prolong the service life of the greenhouse film and effectively delay the ageing speed of the greenhouse film.

Description

technical field [0001] The invention belongs to the technical field of agricultural shed film preparation, and in particular relates to a light-transforming transparent plastic shed film used for cucumber planting and a preparation method thereof. Background technique [0002] As the most populous country in the world, how to use limited arable land resources to feed a population of 1.3 billion has always been one of the focuses of our government. At present, one of the main models of facility agriculture is various types of plastic shed greenhouses, which is also an important summary of the four major projects of "seeds, biology, greenhouses, and green" that my country's agriculture is vigorously promoting. The amount of agricultural film used in my country ranks among the top in the world, but there is still a considerable gap in terms of variety and quality compared with developed countries in the world. The quality and intensity of light is one of the most important fac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K5/3475C08K3/08C08K3/22A01G9/14
CPCA01G9/1438C08J5/18C08J2300/00C08K3/08C08K3/22C08K5/3475C08K2003/2241C08K2201/011C08L2201/10C08L2203/16C08L101/00Y02A40/25
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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